Rooftop support base



FIG. 1 is a top isometric view of the rooftop support base;

FIG. 2 is a bottom isometric view of the rooftop support base:

FIG. 3 is a top view of the rooftop support base;

FIG. 4 is a front view of the rooftop support base, the rear view being identical;

FIG. 5 is a left side view of the rooftop support, the right side view being identical; and,

FIG. 6 is a bottom view of the rooftop support base.

The broken lines depict portions of the rooftop support base that form no part of the claimed design, and are for illustrative purposes only. 

CLAIM The ornamental design for a rooftop support base, as shown and described. 